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Flowering Period

Fruit

Seeds

Germination from spring - late summer. The seeds are triangular, mostly with parts of the perianth and dark brown. P. aviculare is a shallow germinator and dependent on sufficient light for normal development.

Viability of Seeds

Propagation

Occurrence

Habitat

Soil

Undemanding, Prostrate knotweed will tolerate almost all soils.

Additional Crop Information

Spring cereals.

Agricultural Importance

P. aviculare is a competitive weed since it often occurs in high densities and indicates soil compaction. It is less sensitive to herbicides typically applied in corn. Seed production rate is high. Prostrate knotweed also is a very troublesome weed in turf.